// Comprueba los valores introducidos en los formularios.
// Formulario para la propuesta de un nuevo FORO...

function CompruebaNuevoForo(Formulario)
{
	if (Formulario.Opinion.value=="")
	{
		alert('Debe opinar sobre el nuevo foro..!');
		return false;
	}
  	if ((Formulario.email.value.indexOf ('@', 0) == -1)||(Formulario.email.value.length < 5))
  	{ 
    	alert('Debe rellenar una dirección de correo electrónico válida..!'); 
    	return false; 
  	}
	if (Formulario.TEMA.value=="")
	{
		alert('Debe indicar el Tema del nuevo foro..!');
		return false;
	}
			
	Formulario.submit()
	return true
}

// Formulario para añadir una oponión sobre un FORO...

function CompruebaOpinionForo(Formulario)
{
	if (Formulario.Opinion.value=="")
	{
		alert('Debe opinar sobre el foro..!');
		return false;
	}
  	if ((Formulario.email.value.indexOf ('@', 0) == -1)||(Formulario.email.value.length < 5))
  	{ 
    	alert('Debe rellenar una dirección de correo electrónico válida..!'); 
    	return false; 
  	}
			
	Formulario.submit()
	return true
}


fecha = new Date();
meses = new Array ("enero","febrero","marzo","abril","mayo","junio","julio","agosto","septiembre","octubre","noviembre","diciembre");
dias = new Array ("Domingo","Lunes","Martes","Miércoles","Jueves","Viernes","Sábado");
dia = fecha.getDate();
dia_semana = fecha.getDay();
mes = fecha.getMonth()+1;
anyo = fecha.getYear();

function setRowColor(theRow, rowColor)
{
    if (rowColor == '' || typeof(theRow.style) == 'undefined') {
        return false;
    }
    if (typeof(document.getElementsByTagName) != 'undefined') {
        var theCells = theRow.getElementsByTagName('td');
    }
    else if (typeof(theRow.cells) != 'undefined') {
        var theCells = theRow.cells;
    }
    else {
        return false;
    }
    var rowCellsCnt  = theCells.length;
	for (var c = 0; c < rowCellsCnt; c++) {
		setCellColor(theCells[c], rowColor);
    }

    return true;
} 

function setCellColor(theCell, color) {
    if (color == '' || typeof(theCell.style) == 'undefined') {
        return false;
    }

    theCell.style.backgroundColor = color;

    return true;
}

function PoneLaFecha()
{
   document.write(dias[dia_semana] + ", " + dia + " de " + meses[mes-1] + " de " + anyo);
}


//Script submitted to and featured on
//http://www.dynamicdrive.com

/* 
 * FadingText(divName, numSteps, BGColor)
 * divName : Must match the DIV names defined at the end of the BODY)
 * numSteps: The number of steps in the fading transition
 * BGColor : The background colour of the DIV or document.
 */
	FadingText('fade1', 10,"FFFFFF");

/*** The "Frame Interval" Smaller = faster ***/
	FadeInterval=30;

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_reloadPage(init) {  //reloads the window if Nav4 resized
  if (init==true) with (navigator) {if ((appName=="Netscape")&&(parseInt(appVersion)==4)) {
    document.MM_pgW=innerWidth; document.MM_pgH=innerHeight; onresize=MM_reloadPage; }}
  else if (innerWidth!=document.MM_pgW || innerHeight!=document.MM_pgH) location.reload();
}
MM_reloadPage(true);

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

/***********************************************
* Switch Menu script- by Martial B of http://getElementById.com/
* Modified by Dynamic Drive for format & NS4/IE4 compatibility
* Visit http://www.dynamicdrive.com/ for full source code
***********************************************/

var persistmenu="yes" //"yes" or "no". Make sure each SPAN content contains an incrementing ID starting at 1 (id="sub1", id="sub2", etc)
var persisttype="sitewide" //enter "sitewide" for menu to persist across site, "local" for this page only

if (document.getElementById){ //DynamicDrive.com change
document.write('<style type="text/css">\n')
document.write('.submenu{display: none;}\n')
document.write('</style>\n')
}

function SwitchMenu(obj){
	if(document.getElementById){
	var el = document.getElementById(obj);
	var ar = document.getElementById("masterdiv").getElementsByTagName("span"); //DynamicDrive.com change
		if(el.style.display != "block"){ //DynamicDrive.com change
			for (var i=0; i<ar.length; i++){
				if (ar[i].className=="submenu") //DynamicDrive.com change
				ar[i].style.display = "none";
			}
			el.style.display = "block";
		}else{
			el.style.display = "none";
		}
	}
}

function get_cookie(Name) { 
var search = Name + "="
var returnvalue = "";
if (document.cookie.length > 0) {
offset = document.cookie.indexOf(search)
if (offset != -1) { 
offset += search.length
end = document.cookie.indexOf(";", offset);
if (end == -1) end = document.cookie.length;
returnvalue=unescape(document.cookie.substring(offset, end))
}
}
return returnvalue;
}

function onloadfunction(){
if (persistmenu=="yes"){
var cookiename=(persisttype=="sitewide")? "switchmenu" : window.location.pathname
var cookievalue=get_cookie(cookiename)
if (cookievalue!="")
document.getElementById(cookievalue).style.display="block"
}
}

function savemenustate(){
var inc=1, blockid=""
while (document.getElementById("sub"+inc)){
if (document.getElementById("sub"+inc).style.display=="block"){
blockid="sub"+inc
break
}
inc++
}
var cookiename=(persisttype=="sitewide")? "switchmenu" : window.location.pathname
var cookievalue=(persisttype=="sitewide")? blockid+";path=/" : blockid
document.cookie=cookiename+"="+cookievalue
}

if (window.addEventListener)
window.addEventListener("load", onloadfunction, false)
else if (window.attachEvent)
window.attachEvent("onload", onloadfunction)
else if (document.getElementById)
window.onload=onloadfunction

if (persistmenu=="yes" && document.getElementById)
window.onunload=savemenustate